Bush, who was born in Texas, is the son of former president George H.W. Bush and brother of former president George W. Bush.

He is married to Columba Bush, who was born in Mexico, he speaks fluent Spanish and as a young man he lived in Venezuela.

Winning Latino support is key if Bush is to succeed in a likely run for the presidency. Some 11 million Hispanic people participated in the 2012 elections, equivalent to 8.8 percent of the total number of voters.

Ethnic self-identity has been an issue for other candidates in the past.

For instance, when Elizabeth Warren ran for Senate in 2012, she was accused of misrepresenting herself after saying she was a Native American.